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Results tagged with block-cipher
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user 11744
A block cipher is an encryption algorithm which encrypts fixed-size blocks of plaintext to same-sized blocks of ciphertext. For good ciphers every bit of the ciphertext block depends on every bit of the plaintext block and every bit of the key.
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Block Ciphers and (Non-)Generic Attacks
I am currently reading through Cryptography Engineering and came across this definition of block cipher security:
Definition 2 An attack on a block cipher is a non-generic method of
distinguishi …
- 203
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Exercise: Attack on a Two-Round DES Cipher
Working through the exercises in Cryptography Engineering (Schneier, Ferguson & Kohno) I have stalled on the following exercise:
Consider a new block cipher, DES2, that consists only of two rounds …
- 203